baber/WOPTO huggingface dataset:
Patent GB-1287224-A (GB)
Title: Motor vehicle door
IPC: G05G1/08
Filed: 1970-10-23
Abstract: 1287224 Window operating handle FORD MOTOR CO Ltd 23 Oct 1970 [3 Nov 1969] 50420/70 Heading E2M A window operating handle in a vehicle door, as shown, is situated in a recess in the door panel 4, the handle being rotatably mounted in the base of the recess. The handle consists of a disc 5 and a knob 6 mounted near the periphery of the disc the knob 6 being rotatably mounted in the base of a cup member 8 which is slidable in a sleeve 7. A mousetrap spring 11 has one end anchored in the disc 5 and the other to a tang on the cup member 8, biasing the cup member 8 and therefore the knob 6 towards the base of the recess. In use the knob is first pulled out of the recess against the action of the spring.
Patent GB-1403364-A (GB)
Title: Method of manufacturing electric storage batteries
IPC: H01M50/529
Filed: 1971-10-30
Abstract: 1403364 Electric storage batteries JOSEPH LUCAS (BATTERIES) Ltd 27 July 1972 [30 Oct 1971] 50535/71 Addition to 1087466 Heading H1B In a method of making electric storage batteries packs of battery plates and separators are placed within separate compartments of a thermoplastic battery box, plates in adjacent compartments are interconnected by a conductive slug 17 which extends through apertures in the partition wall 12 and respective common electrode extensions or lugs 14, 15 by resistance welding thereof, the battery box and a thermoplastics lid are each heated to soften the mating parts thereof and the lid is pressed on to the box. The conductive slug may be tapered at one end to facilitate insertion thereof and it may extend slightly beyond each of the respective lugs when disposed in position to interconnect the lugs.
Patent GB-1098839-A (GB)
Title: Blast apparatus for cleaning surfaces
IPC: B63B59/06
Filed: 1965-11-29
Abstract: 1,098,839. Blasting. MERCANTILE MARINE ENGINEERING & GRAVING DOCKS CO. Nov. 29, 1965 [June 15, 1965], No. 50559/65. Addition to 998,106. Heading B3D. Blast apparatus for cleaning surfaces, more particularly metallic surfaces, as in Specification 998,106 has a structure inserted between the vehicle and the projection housing and shaped as a bracket of which the horizontal arm rests on the vehicle whilst the vertical arm acts as a guide and a rolling track for the projection housing. A bracket 182 comprises a horizontal beam 183 mounted by rollers 185 on cross-beams 184 of the carriage A. The bracket also comprises a vertical beam having U-shaped uprights (186), 187 and a lattice construction 188 connected by pins 189 to the horizontal beam 183. Between the uprights (186), 187 is a crab 190 suspended on cables 197 passing over guide. rollers 198, 199, 200, (201) and wound on a winch 202 carried by the horizontal beam 183. The crab has upper and lower platforms 191, 192 ; a rod 193 is pivotally connected to the lower platform 192 and to the device B for projecting hard particles. The rear part of the device B is fitted with a seat 196. An operator can use the platforms 191, 192 or the seat 196 when carrying out supervision, maintenance and repairs. The device B is connected to the filtering means C by a hose 203. The horizontal beam 183 carries a control table 204. For cleaning the hull 207 of a ship, the carriage moves on the upper surface 205 of a dry dock wall 206.
Patent GB-1467580-A (GB)
Title: Chain tensioning device for a chain driven machine
IPC: B65G23/44
Filed: 1975-12-10
Abstract: 1467580 Chain tensioners BERGWERKSVERBAND GmbH 10 Dec 1975 [5 Feb 1975] 50678/75 Heading F2Q A chain tensioning device comprises a magnetic roll 5 disposed adjacent a chain wheel 3 and adapted to attract the chain 41 and maintain it in tension between the chain wheel 3 and roll 5. The magnetic tensioning roll 5 may be provided with its own drive which may be connected to the drive of the machine. The tensioner may be applied to a chain scraper conveyer or a coal cutting machine.
Patent GB-506919-A (GB)
Abstract: 506,919. Discharge lamps. GENERAL ELECTRIC CO., Ltd., PIRANI, M., and RUDENBERG, R. Dec. 6, 1937, No. 33712. [Class 39 (i)) [Also in Group XXXV] In addition to the normal low-frequency supply to an electric discharge device via. the main electrodes, a small amount of power is also supplied at high-frequency (not less than 6 Mc.) via at least one auxiliary electrode in order to reduce the magnitude of the starting voltage required every cycle or half-cycle. A low-pressure gas-filled discharge lamp has a non-conducting tubular envelope 1 and main electrodes 2, 2<1> (at least one of which is thermionic) which are connected in series with a resistor 5 across the terminals 6, 6 of a lowfrequency supply. An auxiliary electrode 3 situated midway between the main electrodes, inside or outside the envelope, is prolonged at its ends by wires 4, 4<1> and is connected with a 6 Mc. valve oscillator 7 suitable for continuous operation. The discharge between the main electrodes may be controlled for intermittent operation by switching the highfrequency voltage on and off. Specifications 417,855 and 435,025 are referred to.
Patent GB-1476654-A (GB)
Title: Electric clocks
IPC: G04C3/14
Filed: 1974-11-22
Abstract: 1476654 Control of stepping motors V DO ADOLF SCHINDLING AG 22 Nov 1974 [28 Nov 1973] 50783/74 Heading H2J [Also in Division G3] In an electronic timepiece comprising a crystal controlled oscillator 1 (Fig. 1) followed by a frequency divider and drive circuit 6 for a stepping motor 7 coupled to a time display, the drive circuit is controlled so as to provide drive pulses having a stepped trailing, e.g. as shown Fig. 3. This is said to substantially prevent overshooting and to damp the natural oscillations of the motor armature. From the divider 2 output (e.g. at 0À5 Hz) a pulse shaper 3 produces a positive train of pulses in a line 4 and a negative train in line 5, which trains are received by logic circuits 9, 10 respective of the control circuit 6 together with signals in a line 8 from an intermediate stage in the divider 2. The circuits 9, 10 control a transistor switching bridge 11 to pass current pulses from a D.C. source alternately in opposite direction through the motor 7. In operation with FETs 14, 15 initially ON, FETs 12, 16, 17 are switched ON and FET 14 is switched OFF when a positive pulse is received by logic circuit 9; consequently a relative high current I 0  (Fig. 3) flows in the motor. After a set period FET 17 is switched OFF and a smaller current I 1  flows. After a further period FET 16 is switched OFF and the current is reduced to I 2 . Then FET 12 is switched OFF and FET 14 is switched ON together with FETs 13, 18, 19 to commence the next halfcycle. In another embodiment, Fig. 4 (not shown), a logic circuit (22) controls a bipolar transistor switching bridge (23)-(26). The stepped current pulses are obtained from constant current sources (27), (28), (29) which are activated and sequentially deactivated by a further logic circuit (30).
Patent GB-1034168-A (GB)
Title: Process for the quantitative separation of formaldehyde from aqueous solutions
IPC: C07C47/04
Filed: 1964-12-14
Abstract: In a process for the concentration of an aqueous formaldehyde solution by pressure distillation the water product discharged from the sump of the distillation column to sewerage is kept practically free from formaldehyde.  The process involves bringing water to boil under a pressure of preferably 2 to 6 atmospheres in the sump, and then continually introducing the aqueous solution into the distillation column at between one quarters and four fifths of the way up the column, the solution being distilled off under this pressure at the head of the column and the vapours condensed, and the water product substantially free of formaldehyde being discharged from the sump, the water product containing a maximum of 0.2% by weight of formaldehyde.  The concentration of the head product is increased by raising the reflux proportion.  The basic aqueous solution introduced may include further constituents, such as methanol, formic acid, and methyl formate.
Patent GB-1357015-A (GB)
Title: Film assembly
IPC: G03C8/52
Filed: 1971-11-03
Abstract: 1357015 Subbed photographic support ILFORD Ltd 1 Nov 1972 [3 Nov 1971] 51157/71 Heading G2C [Also in Divison B2] A cellulosic film base assembly comprises a cellulosic film base bearing on at least one surface thereof a subbing layer not more than 1Á. thick which comprises a mixture of cellulosic polymer and a polyester-based urethane which contains no free isocyanate groups which are soluble in ethyl alcohol and/or acetone. Suitable cellulosic film bases are of nitrocellulose, cellulose triacetate and cellulose acetate-butyrate. Suitable cellulosic polymers are nitrocellulose, cellulose acetate, cellulose triacetate, cellulose propionate, cellulose acetate-propionate and cellulose acetate-butyrate, and ethyl cellulose. Suitable polyester-based polyurethanes are also listed. Preferably two parts of polyurethane to one part cellulosic polymer to one part of polyurethane to two parts of the polymer are used. A lacquer of nitrocellulose, polyvinylacetal, phenoxy resins or polyesters may be coated over the subbing layer. The lacquer layers may comprise magnetic oxide particles, titania or silica particles, carbon black or other pigments. On the reverse side to the subbing layer a gelatin subbing layer which has coated thereon a photographic silver halide emulsion layer may be present.
Patent GB-1328551-A (GB)
Title: Method of and apparatus for oral hygiene
IPC: B05B1/08
Filed: 1970-10-29
Abstract: 1328551 Spray nozzles INSTITUT DE RECHERCHE WOOG 29 Oct 1970 [31 Oct 1969] 51407/70 Heading B2F [Also in Division A5] A spray head for use with a system for the massage of gums and cleaning of teeth (see Division A5) comprises two parts; a rear part 7 having a portion 1 for connection with a conduit and a core portion 22 as shown, and a front part 3 having a circular bore 10 adapted to matingly receive the end portion of the core 22 and to define the nozzle D by providing a plurality of apertures 2 at points around the union, which apertures may be of triangular, elongate, semi-circular or square configuration (Figs. 8-11, not shown). In a first modification, Fig. 6 (not shown) the core (22') is not made integral with the rear portion (6) and in a second modification, the portion (1) for the conduit is integral with the front part (3). The portions 3, 7 are screwed, welded or stuck at the liquid-tight joint 19. In a third modification, Fig. 7 (not shown), the core (22) may be omitted and a circular plate (13) having a plurality of apertures (25) may be inserted in the bore (10).
Patent GB-1482098-A (GB)
Title: Thermoforming apparatus
IPC: B29C61/00
Filed: 1974-11-29
Abstract: 1482098 Sheet forming NRM CORP 29 Nov 1974 [3 Jan 1974] 51826/74 Heading B5A A thermoforming apparatus includes an oven 3 and a forming machine 2, e.g. of the pressure and/or vacuum type, a conveyer 5, e.g. with spikes 5, 6 to transport a sheet through the apparatus, heat shields 11 and 12 and sag inhibiting means comprising at least one perperforated pipe 14 which can be supplied with, e.g. compressed air, to form a fluid bearing to facilitate transport of the web through the oven. The pipe 14 is located in the final portion of the oven and slopes upwardly where it is introduced into the oven.
Patent GB-1468058-A (GB)
Title: Operating pivotable door assemblies
IPC: E05F11/04
Filed: 1975-03-03
Abstract: 1468058 Door operating mechanisms LANGDON & FRASER Ltd 3 March 1975 [2 Dec 1974] 52069/74 Heading E2M  A door 2 is pivoted about a horizontal axis 3 by manual operation of a chain 17 and pulley 18 device which acts via a gear unit 4 on a door pivot shaft 8, the arrangement being such as to allow opening movement of the door by pressure on the door itself and the unit 4 being connected to the shaft 8 by a demountable coupling 5 which consists of two flanges held together by bolts with a resilient member between them. One flange is secured to shaft 8, the other to a drive shaft terminating in a bevel gear 15 and by unbolting the flanges and removing the bolts that secure the casing 12 of the unit 4 to the door frame the unit can be removed. A counterbalance weight (not shown) extends laterally across the extremities of three arms 9 (only one shown). The arrangement is particularly suitable for use in a building used to store china clay.
Patent GB-1488896-A (GB)
Title: Variable amplitude timed alarm system
IPC: H04B1/16
Filed: 1974-12-03
Abstract: 1488896 Gating circuits; radio receivers RCA CORPORATION 3 Dec 1974 [10 Dec 1973] 52201/74 Headings H3T and H3Q [Also in Division G3] An alarm circuit for a clock includes an active circuit element having a main current path and a control electrode connected to a charge storage device which is charged at a predetermined rate so that the current path becomes increasingly conductive to increase the volume of an audio alarm. The circuit shown is described for use in a clock radio including an alarm and a drowse switch 4 and includes a variable impedance element, F.E.T. 37, whose conduction increases as the voltage across capacitor 35 builds up. Operation of alarm contacts 10 cause a D.C. voltage to be applied to line 12 which causes capacitor 19 to charge until transistor 18 starts to conduct when the originally saturated transistor 17 amplifies the A.C. alarm signal applied through line 15 and the resistor capacitor network 24, 25, 26. The potential at point X, determined by resistors 21 and 34 laps FET 37 just non-conducting until the trigger circuit of unit 2 operates to raise the potential at point X which causes capacitor 35 to start charging and raise the gate potential of FET 37. The impedance of the FET reduces to allow the A.C. alarm signal applied to the loud-speaker unit 40 to steadily increase in amplitude. The alarm may be switched off by operation of switch 5, switch 10 or switch 7 or by pressing switch 4 to discharge capacitor 19 and reset trigger transistors 17, 18 to thus initiate a new timing cycle and provide a "drowse" facility. A modified circuit arrangement for operation with a digital electronic clock integrated circuit which includes various counter circuits and the alarm generator is described, Fig. 2 (not shown). An AUTO-OFF-ON switch 7 enables the radio circuits 8 to be turned on for normal or timed operation. A sleep switch 9 can be set to automatically switch off the radio after a desired time such as ¢ hour. A timer switch 5 can be set to switch on the radio at a preselected time. A further switch 10 may be set to radio if no alarm is desired or to alarm as in the position shown.
Patent GB-1353177-A (GB)
Title: Movable circuit breaker units for polyphase metal-clad switchgear
IPC: H01H31/24
Filed: 1971-11-10
Abstract: 1353177 Switchgear structures GENERAL ELECTRIC CO 10 Nov 1971 [10 Nov 1970] 52241/71 Heading H1N A horizontally-withdrawable circuit-breaker unit comprises a truck 26 with a horizontal base 28 and a vertical frame 82 spaced from the rear of the truck, two vacuum type interrupters 60 for each phase vertically mounted above and below a casing 80 supported on insulators 83 extending from the frame 82 towards the rear of the truck, a pair of horizontally extending isolating contact studs 90, 92 for each phase extending adjacent the free ends of the interrupters 60, insulators 93, 94 supporting the studs on the truck, and vertical insulating barriers 110 projecting from the frame towards the rear end of the truck and interposed between the phases. Further barriers may be provided at the outer sides of the outer phases. The interrupters 60 are connected by flexible braids 95 to the studs 90, 92 so that when the unit is racked in, forces on the studs are transmitted to the frame and not to the interrupters. Openings are provided in the lower portion of a front panel 122, the base 28 of the truck 26 and at the top 116 of the switchgear structure so that cooling air moved by natural convection can flow in the spaces between the insulating barriers which form the walls of three chimneys.
Patent GB-1480950-A (GB)
Title: Acyl substituted benzyl and dibenzyl ethers
IPC: C07C45/71
Filed: 1974-12-04
Abstract: 1480950 Acyl substituted benzyl ethers SANDOZ Ltd 4 Dec 1974 [6 Dec 1973 8 Aug 1974] 52399/74 Heading C2C Novel compounds I in which each of R 1  and R 2  is H, F, Cl, straight chain C 1-4  alkyl or straight chain C 1-4  alkoxy, each of R 3  and R 4  is Me or Et and n is 0 or 1, but excluding p-(4-methoxyphenoxymethyl)- pivalophenone, are prepared by reacting a compound II in which X is Cl or Br, with a compound III in which M is Na, K or Li, in the presence of an inert organic solvent. α - Bromo - p - pivaloyltoluene is prepared by reacting p-tolyl magnesium bromide with pivaloyl chloride and treating the resulting p-pivaloyl-toluene with N-bromosuccinimide. Pharmaceutical compositions having hypolipedemic activity, for oral administration, comprise a compound I together with a pharmaceutical carrier.
Patent GB-1464583-A (GB)
Title: Preparation of quinazoline derivatives
IPC: C07D409/12
Filed: 1974-12-04
Abstract: 1464583 Preparation of 4-amino-2-piperazinyl-quinazoline derivatives PFIZER Inc 4 Dec 1974 [5 Dec 1973] 52527/74 Heading C2C The invention comprises a process for the preparation of compounds of the Formula I in which a compound of the Formula II or a salt thereof is reacted with a compound of the Formula III or a salt thereof, in an inert organic solvent, wherein R<SP>1</SP> is hydrogen or methoxy, R<SP>2</SP> is C 3-5  alkenyl, benzoyl, furoyl or thienylcarbonyl, an alkoxycarbonyl containing 2 to 5 carbon atoms, an alkenyloxycarbonyl containing 4 or 5 carbon atoms or a (2-hydroxyalkoxy)- carbonyl containing 4 or 5 carbon atoms, Q is cyano or -C(NH)NH 2 , and A is cyano or -C(NH)XR<SP>3</SP> in which R<SP>3</SP> is C 1-6  alkyl and X is oxygen or sulphur, provided that when Q is cyano A is -C(NH)XR<SP>3</SP>. The process may be effected using a basic catalyst.  The compounds I are hypotensive agents.
Patent GB-1329569-A (GB)
Title: Process for producing electro-conductive paper
IPC: H01B13/00
Filed: 1970-11-05
Abstract: 1329569 Paper RANK XEROX Ltd 5 Nov 1970 [8 Nov 1969] 52678/70 Heading D2B [Also in Division B2] Electrically conductive paper is made by applying electrical discharges through a paper sheet such that carbonised electrically conductive paths are formed therethrough. In a typical embodiment, a paper sheet 21 is passed between electrically conducting rollers 22, 23, roller 23 being covered with a semi-conductive layer 24, and subjected to an electrical discharge produced by either an a.c. or d.c. source 25. In a modification, Fig. 3 (not shown), the electrical discharges are made between flexible electrodes contacting the top surface of a paper sheet and a base electrode. The supply circuit to the electrodes may contain resistors of an appropriate value to control the discharge energy.
Patent GB-1267827-A (GB)
Title: Improvements in or relating to amplifiers
Inventor: MANN RICHARD
IPC: H03F3/30
Filed: 1969-10-28
Abstract: 1,267,827. Transistor amplifier. TEXAS INSTRUMENTS Ltd. 28 Oct., 1970 [28 Oct., 1969], No. 52772/69. Heading H3T.  In an amplifier, local negative feedback is applied around each of a complementary pair of transistors V T2 , V T4  or V T3 , V T5  via respective resistances R 11 , R 8  or R 12 , R 9 , the pairs of transistors being complementary to each other. Each transistor operates in the common emitter mode and the collectors of transistors V T4  and V T5  are each connected to an output terminal 9. The input to the amplifier is to each base of the transistors V T2  and V T3 . An integrated circuit amplifier ÁA1 may be used to drive the amplifier and negative feedback from the output terminal 9 to the inverting input of the amplifier ÁA1 is applied through frequency shaping networks R 5 , C 4  and R 2 , R 3  and C 1 .
Patent GB-1213365-A (GB)
Title: Transformer insulation construction
Inventor: BECKETT JAMES GILBERT
IPC: H01F27/32
Filed: 1968-11-08
Abstract: 1,213,365. Transformers. B. S. & W. WHITELEY Ltd. 5 Nov., 1969 [8 Nov., 1968], No. 52961/68. Heading HIT. A transformer H.V. winding 11 is insulated from L.V. winding 10 by a plurality of concentric pressboard cylinders 12 with longitudinal corrugations 14 which are in the same sense and are radially aligned from one cylinder to the next. The cylinders are spaced to provide ducts 22 for cooling oil by longitudinal sticks 15 of laminated or resin bonded pressboard. Each stick 15 has a rib 16 and a channel 17 to fit re-entrant and projecting surfaces respectively of aligned corrugations, thus providing positive lateral location of the sticks. Further radially aligned sticks 18, 19 space the cylinders from the windings. The cylinders are made from one or more pieces, glued with a thermosetting adhesive at scarf joints 13. In an alternative embodiment, the corrugations (23) are V-shaped and the sticks (24) are of pressboard and V-shaped with the two arms of equal length.
Patent GB-1417309-A (GB)
Title: Containers for the transport of radioactive materials
IPC: G21F5/00
Filed: 1973-11-15
Abstract: 1417309 Shielded containers ROBATEL SLPI 15 Nov 1973 [28 Dec 1972] 53139/73 Heading B4Q A shielded container for the transport of heat-evolving radioactive materials comprises a metallic outer casing 1 from which cooling fins or pins 2 project, a perforated peripheral wall 6 extending between end flanges 3, 4 of the casing 1 so as to form a rigid supporting surface for a protective, fluid-tight flexible covering sleeve 16. The container is normally used without the covering sleeve 16 (as in Fig. 2, not shown) when the perforated wall 6 does not hinder free circulation of ambient air between the pins 2 which thus effectively dissipate the heat generated by the radioactive materials within the container. Flange 3, which corresponds to the open end of the container, i.e. the upper end when the container is mounted vertically for unloading, carries three coupling elements 7, 8 and 9. Coupling element 7 is connected via conduits 10, 10a with inflatable clamping seals 11, 12 provided in peripheral grooves 3a, 4a of the end flanges 3, 4. Each flange 3, 4 is surrounded by a ring 13 removably secured to the flanges. Coupling element 8 communicates with an annular spray pipe 14 disposed against the inner side of the flange 3 so as to be capable of spraying the pins 2 with water. An outlet 4b in the flange 4 communicates with the coupling element 15 and coupling element 9 is adapted to receive air under pressure in order to expel water through outlet 4b and element 15. The unloading of the container is effected by first cooling the container to an appropriate temperature by means of the spray pipe 14, after which the rings 13 are removed and the sleeve 16 is disposed on the perforated wall 6, the rings 13 then being replaced and compressed air injected into element 7. Seals 11, 12 are thus inflated and clamp the ends of the sleeve 16 against the rings 13. Spraying of the pins 2 is then resumed and the container is immersed in the unloading pond. Once the unloading operation is completed, the container is lifted from the pond and sleeve 16 removed, whereupon it is only necessary to decontaminate the generally smooth end portions of the container and the outer sides of its end flanges 3, 4, the pins 2 in particular having been protected by the sleeve 16 from the contaminated water of the pond.